NSN 5305-00-623-0637 54B6759H15, 58-21-216-24, 58-21-216-56
Product Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-623-0637 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.
Part Alternates: 54B6759H15, 58-21-216-24, 58-21-216-56, 5305-00-623-0637, 00-623-0637, 5305006230637, 006230637, 582121656, 582121624
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 01 MAR 1975 | 00-623-0637 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
Drawings & Photos | NSN 5305-00-623-0637
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Technical Data | NSN 5305-00-623-0637
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.380 INCHES NOMINAL |
| FASTENER LENGTH | 1.380 INCHES NOMINAL |
| MATERIAL | COPPER ALLOY OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B36 ASSN STD 1ST MATERIAL RESPONSE OR QQ-B-643 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH M316A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | C66 KNURLED NO. 1 |
| HEAD DIAMETER | 0.560 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | D14 SLOT |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.185 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.000 INCHES NOMINAL |
Restrictions/Controls & Freight Information | NSN 5305-00-623-0637
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 096630 | SCREWS NOI BRASS/BRONZE/COPPER |
| Less than car load rating | ||
| Less than truck load rating | Q | 70.0 |
| Water commodity Code | 713 | unknown |
| Originating Activity Code | KZ | Defense Supply Center Philadelphia Philadelphia, PA 19101 |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |